nextapp.echo
Class StreamImageReference

java.lang.Object
  nextapp.echo.AbstractImageReference
      nextapp.echo.StreamImageReference

All Implemented Interfaces:

java.io.Serializable, ImageReference

Direct Known Subclasses:

EncodedImageReference, URLImageReference

public abstract class StreamImageReference
extends AbstractImageReference
implements java.io.Serializable

A reference to an image that will be retrieved from a binary stream.

See Also:

Serialized Form

Field Summary

Fields inherited from class nextapp.echo.AbstractImageReference

listenerList

Fields inherited from interface nextapp.echo.ImageReference

SIZE_UNKNOWN

Constructor Summary

StreamImageReference()
Default constructor.

Method Summary

abstract java.lang.String	getContentType() Returns the valid RFC 1521 image content type (image/png, image/jpeg, image/gif, etc) of the image.
int	getHeight() Returns the height of the image.
int	getWidth() Returns the width of the image.
abstract void	render(java.io.OutputStream out) Sends a byte representation of the image in its native format out the given output stream.

Methods inherited from class nextapp.echo.AbstractImageReference

addImageUpdateListener, removeImageUpdateListener, update

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

StreamImageReference

public StreamImageReference()

Default constructor.

Method Detail

getContentType

public abstract java.lang.String getContentType()

Returns the valid RFC 1521 image content type (image/png, image/jpeg, image/gif, etc) of the image.

Returns:

The content type of the image.

getHeight

public int getHeight()

Description copied from interface: ImageReference

Returns the height of the image. If the height is not known, SIZE_UNKNOWN should be returned.

Specified by:

getHeight in interface ImageReference

Returns:

The height of the image in pixels.

See Also:

ImageReference.getHeight()

getWidth

public int getWidth()

Description copied from interface: ImageReference

Returns the width of the image. If the width is not known, SIZE_UNKNOWN should be returned.

Specified by:

getWidth in interface ImageReference

Returns:

The width of the image in pixels.

See Also:

ImageReference.getWidth()

render

public abstract void render(java.io.OutputStream out)
                     throws java.io.IOException

Sends a byte representation of the image in its native format out the given output stream.

Parameters:

out - The output stream to write the image.

Throws:

java.io.IOException